RT info:eu-repo/semantics/article T1 Influence of Seminal Metals on Assisted Reproduction Outcome A1 Rodríguez Díaz, Rubí Nieves A1 Blanez Zamora, Raquel A1 Vaca Sánchez, Rebeca A1 Gómez Rodríguez, Jorge Eduardo A1 Hardisson de la Torre, Arturo A1 González Weller, Dailos M. A1 Gutiérrez Fernández, Ángel J. A1 Paz Montelongo, Soraya A1 Rubio Armendáriz, María del Carmen A1 González Dávila, E. K1 Metal K1 Semen analysis K1 Obesity K1 ICSI K1 Embryo quality K1 Pregnancy AB Increased levels of metal ions in human seminal fluid have a significant correlation with male fertility. Few publications explain the effect of metals in semen and their influence on assisted reproductive treatments. Semen parameters and the levels of twenty-two metals were measured in the seminal fluid of 102 men attended in a Reproductive Unit. Metals were determined by optical emission spectrophotometry. A statistical relationship was found between spermiogram and iron, which was lower than expected in pathological spermiograms (p = 0.032); zinc (p = 0.066), calcium (p = 0.047), and magnesium (p = 0.048) mean levels were higher in normozoospermics. More days of sexual abstinence correlates with higher seminal zinc (p = 0.001) and magnesium levels (p = 0.002). Lower vanadium values were found to be associated with higher fertilization rates (p = 0.039). Higher values of lead (p = 0.052) and vanadium (p = 0.032) were obtained in patients who did not reach 100% embryo cleavage rate. Aluminium (p = 0.042) and sodium (p = 0.002) were found in lower amounts associated with better blastocyst rates. The implantation rate shows an inverse association with women’s age and iron and calcium content, compared to magnesium and sodium which presented a significant direct association with this percentage. A significant direct relationship was found between the positive evolution of pregnancy and the values of zinc (p = 0.004), calcium (p = 0.013), potassium (p = 0.002), and magnesium (p = 0.009). The study confirms that zinc, iron, calcium, sodium, aluminium, magnesium, vanadium, and lead have positive–negative effects on reproduction and support the analysis of metals in semen as a new line of study on male fertility with implications for reproductive outcomes. YR 2022 FD 2022 LK http://riull.ull.es/xmlui/handle/915/34988 UL http://riull.ull.es/xmlui/handle/915/34988 LA en DS Repositorio institucional de la Universidad de La Laguna RD 06-ago-2024